Unsteady flow of a nanofluid past a permeable shrinking cylinder using buongiorno's model

Khairy Zaimi, Anuar Mohd Ishak, Ioan Pop

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The unsteady laminar boundary layer flow of a nanofluid and heat transfer over a permeable shrinking cylinder using the Buongiorno's nanofluid model is investigated. Using a similarity transformation, the governing partial differential equations are transformed into a system of ordinary differential equations and then solved numerically using a shooting method. The numerical results are obtained for velocity, temperature and concentration profiles as well as the skin friction coefficient, the local Nusselt number and the local Sherwood number. Dual solutions are found to exist in a certain range of the suction and unsteadiness parameters. It is observed that suction parameter increase both the skin friction coefficient and the heat transfer rate at the surface, whereas the opposite trend is obtained for the Sherwood number. It is also observed that suction widens the range of the unsteadiness parameter for which the solution exists.

Original languageEnglish
Pages (from-to)1667-1674
Number of pages8
JournalSains Malaysiana
Volume46
Issue number9
DOIs
Publication statusPublished - 1 Sep 2017

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unsteady flow
suction
skin friction
coefficient of friction
heat transfer
laminar boundary layer
boundary layer flow
Nusselt number
partial differential equations
temperature profiles
differential equations
velocity distribution
trends
profiles

Keywords

  • Nanofluids
  • Shrinking Cylinder
  • Suction
  • Unsteady Flow

ASJC Scopus subject areas

  • General

Cite this

Unsteady flow of a nanofluid past a permeable shrinking cylinder using buongiorno's model. / Zaimi, Khairy; Mohd Ishak, Anuar; Pop, Ioan.

In: Sains Malaysiana, Vol. 46, No. 9, 01.09.2017, p. 1667-1674.

Research output: Contribution to journalArticle

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